Mechanism for trimming mantles.



No. 709,044. Patented Sept. "5,1902.

J. T. Roam, MECHANISM FOR TRIMMING MANTLES.

(Application filed Dec. 28, 1901.)

(No Model.)

, the mechanism shown in Fig. 1.

JOSEPH T. ROBIN, OF NEW YORK, N. Y.

MECHANISM FOR TRIIVIIVIING MANTLES.

SPECIFICATION forming part of Letters Patent No. 709,044, dated September 16, 1902.

Application filed December 28,1901. Serial No 87,634. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH T. ROBIN, a citizen of the United States, residing in the borough of Manhattamcity, county, and State of New York, (Whose post-oftice address is 52 Duane street, in said borough,) have invented certain new. and useful Improvements in Mechanism for Trimming Mantles," of which the following is a specification.

My invention relates to mechanism for tri mming or cutting mantles.

I will describe a mechanism embodying my invention and then point out the novel features thereof in the claims.

In the accompanying drawings, Figure l is a top plan view of a mechanism embodying my invention. Fig. 2 is a side elevation of Fig. 3 is a view in transverse section. Fig. 4 isa detail top plan view showing the trimming position of a knife.

Similar letters of reference designate corresponding parts in all of the figures.

A represents a table or other suitable support on which are mounted, each so as to be capable of rotation a plurality of mandrels A, which support mantles.

B represents a plurality of knives, which coact with the mandrels A to trim the mantles supported thereby and which are adapted through suitable means to be moved into and out of operative position relatively to said mandrels. It is obvious that instead of moving the knives to and away from the mandrels the mandrels may be moved to and away from the knives.

The construction and arrangement of parts for each mandrel are the same in all the mandrels, so that the following descriptionof one mandrel will apply to all.

(t represents a post or upright supported on the base A. The mandrel A is preferably hollow and incloses the post a. The mandrel is mounted and retained on the upper end of the post a in any desired manner. It is only necessary that the mandrel be mounted in such manneras to be capable of rotation. A cord e is wound around the mandrel and when unwound rotates the mandrel in one direction. A weight a is secured upon one end of the work and serves to rotate the mandrel in a reverse direction when the cord is released. Thus it will be seen that each mandrel is provided with means for causing its rotation in opposite directions, and, as here shown, the action of one affects the action of the other. The cord a is here shown as being wound upon the mandrel and retained thereon by a flange a Instead, a spool or pulley may be mounted upon the mandrel. a represe'ntsa cup carried by the mandrel, which serves to catch trimmings.

(t represents an adjustable extension for the mandrel, which is provided to accommo date different lengths of mantles and also to regulate the point at which a mantle is to be trimmed to produce different lengths of mantles.

As shown in the drawings, all of the cords a are comprised in a single cord. The cord is wound about each mandrel in a plurality of coils and its free end passed over a pulley a and provided with a hand or finger piece C07. By pulling the free end all of the mandrels are made to rotate simultaneously and the weight raised, so that when the cord is released the weight will act to rotate the mandrels in a reverse direction. Instead of a weight a single spring may be used or a spring on each mandrel.

The construction and arrangement of parts for each knife are the same in all the knives, so that the following description of one knife and concomitant parts will apply to all.

b represents a lever which is fulcrumed intermediate its ends on a support 11', which is located above the table A on standards 19 which project upwardly from the table A. One end 19 of the lever 19 is bifurcated, and the knife B, which is in the form of a disk, is mounted between the branches, so as to be free to rotate. The other end 12 of the lever is acted upon by a spring b which tends to swing the lever on its fulcrum to cause the knife to move toward the mandrel and also to hold the knife against the mandrel. This end of the lever is also provided with a toepiece b which coacts with a cam 11*. The cam 19 engaging the toepiece, when moved causes the leverb to swing on its fulcrum and in a direction reverse to that induced by the spring 11 The normal position of the lever 19 is that shown in Fig. 1, in which position a mantle to be trimmed may be placed on a The cutting position of the knife is shown in Fig. 4. In this view the toepiece I) is disengaged from the cam N. For convenience the cams b are carried by a bar b extending longitudinally of the support I). The bar b is provided with slots 19 through which screws Z9 pass. The screws and slots serve to retain the bar I) on the support Z) and also to guide it in its longitudinal movement. A hand lever 11 connected by a link 6 to the bar 12 may be employed to reciprocate the bar. Instead of a spring 19 for each lever 19 a slotted or other flexible con nection may be made between that end of the lever and the cam 5 The mantles may be .placed on the mandrels in any desired way, either by hand or automatically. They may also be removed after trimming in any desired manner.

Having thus described my invention, the following is what I claim as new and desire to secure by Letters Patent:

1. In a mechanism for trimming mantles, the combination with a vertically-arranged mandrel over which the mantle fits, and the wall of which mandrel serves as a support for the lower portion of the wall of the mantle, a knife for trimming the mantle, and means for rotating one of said parts in contact with the other.

2. In a mechanism for trimming mantles, the combination with a mandrel over which the mantle fits, and the wall of which mandrel serves as a support for the lower portion of the wall of the mantle, an adjustable part carried. by the mandrel, a knife for trimming the mantle, and. means for rotating one of said parts in contact with the other.

3. The combination in a mechanism for trimming mantles, of a mandrel for supporting a mantle, means for causing a rotation of the mandrel in one direction, and other means for causing a rotation of the mandrel ina reverse direction, and a knife adapted to coact mandrel.

with the mandrel to trim the mantle supported thereby.

4. The combination in a mechanism for trimming mantles, of a mandrel for supporting a mantle, a cord coiled about the mandrel for causing a rotation of the mandrel in one direction, a weight connected to the cord and adapted wh en the cord is released for rotating the mandrel in a reverse direction, and a knife adapted to coact with said mandrel for trim-- ming the mantle supported thereby.

5. The combination in a mechanism for trimming mantles of a mandrel for supporting a mantle and adjustable extension on said mandrel, and a knife adapted to coact with said mandrel to trim the mantle supported thereby.

6. The combination in a mechanism for trimming mantles, of a rotatable mandrel for su pporting a mantle, a knife adapted to coact with said mandrel for trimming the mantles, a lever on which said knife is mounted and means operating on said lever to move the knife into and out of operative position relatively to the mandrel, said means comprising a spring for moving the lever in one direction and a cam for moving the lever in a reverse direction.

7. The combination in a mechanism for trimming mantles, of a plurality of mandrels for supporting mantles, a plurality of knives for coacting with said mandrels for trimming the mantles, means for simultaneously moving the knives into and out of operative position relatively to said mandrels and means for causing a simultaneous rotation of said mandrels.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOSEPH T. ROBIN.

Witnesses:

J os. P. MCELDUFF, GEO. E. ORUsE. 

